Three Thai military rangers were killed and 13 others injured, seven seriously, in the latest border clashes between Thailand and Cambodia Friday, the Thai military said.

Chief of Staff Region 2 Col. Prawit Hukaew said that three Thai soldiers were killed in the fatal clashes and at least a house of Thai resident was damaged by the shelling.

The firing erupted Friday morning at around 6:00 a.m. at the border near Pa Nom Dong Rak district of Thailand's Surin province, followed by shelling across the border. Some artillery shells were found in Thai soil.

Both countries blamed each other for pulling the trigger first.

"Cambodia mobilized its soldier deployment along the border and Thai military had warned them before they started firing at us," Panithan Wattanayakorn, the government acting spokesman, told Xinhua over the phone.

According to the Foreign Ministry, Thai and Cambodian armies have agreement to stay 100 meters away from the border line. Bangkok claimed that Cambodian soldiers crossed the line, triggering firing.

Now, Thai government set up seven temporary camps to take care of about 10,000 evacuees. The last border clashes between the two countries took place from Feb. 4 to 7, claiming ten lives of soldiers on both sides.